How to Reduce Low-Quality Leads from Performance Max in 2026

Performance Max has long stopped being an "experimental" campaign type. Today, it is one of the main scaling tools in Google Ads. But along with scale came a problem: low-quality leads.

Many businesses face a situation where the number of inquiries grows, CPA looks attractive, but there are no sales. And the issue is not only the algorithm.

Why does Performance Max bring low-quality leads? PMax optimizes toward the goal you give it. If the goal is "form submission," the system will find people who easily leave inquiries. But that does not mean they will buy. Google works on the principle of maximizing conversions at the lowest possible cost. Lead quality is not a built-in parameter unless you pass it into the system.

The main reasons for poor lead quality. First, the wrong optimization event. Optimizing for a button click, the start of a form fill, or any micro-event leads the algorithm to scale easy conversions. Second, an underdeveloped customer journey. If the form is too simple and there are no qualification questions or audience filters, you are creating the conditions for low-quality leads yourself.

Our approach at Secret Marketing Agency. We do not look at Performance Max separately from the funnel. PMax optimization includes customer journey analysis (we go through the entire customer path from first contact to sale), work on qualification (sometimes the right move is to make the form harder, not easier), passing quality signals (offline conversion imports, deal status syncing, optimization for a qualified lead rather than just a lead), and segmentation through asset groups (a clear division of directions, search themes, and audience signals).

The main conclusion. Performance Max is not the problem. The problem is the wrong signal you give the algorithm. AI scales what you put into it. If you want more sales, not just more inquiries, submit a request on our website and get a free consultation on your funnel and Google Ads optimization.